一个数组根据另一个数组来排序
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2024-01-17 19:04:10
...
$a = Array
(
Array (
'cid' => 1,
'cname' => '关于'
),
Array (
'cid' => 7,
'cname' => '简介'
),
Array (
'cid' => 8,
'cname' => '文化'
),
Array (
'cid' => 9,
'cname' => '动态'
)
);
$b = Array
(
Array (
'cid' => 1,
'cname' => '关于'
),
Array (
'cid' => 2,
'cname' => '歌剧'
),
Array (
'cid' => 3,
'cname' => '美剧'
),
Array (
'cid' => 4,
'cname' => '视频'
),
Array (
'cid' => 5,
'cname' => '娱乐'
),
Array (
'cid' => 6,
'cname' => '联系'
),
Array (
'cid' => 7,
'cname' => '简介'
),
Array (
'cid' => 8,
'cname' => '文化'
),
Array (
'cid' => 9,
'cname' => '动态'
)
);
$c = Array
(
Array (
'cid' => 1,
'cname' => '关于'
),
Array (
'cid' => 7,
'cname' => '简介'
),
Array (
'cid' => 8,
'cname' => '文化'
),
Array (
'cid' => 9,
'cname' => '动态'
),
Array (
'cid' => 2,
'cname' => '歌剧'
),
Array (
'cid' => 3,
'cname' => '美剧'
),
Array (
'cid' => 4,
'cname' => '视频'
),
Array (
'cid' => 5,
'cname' => '娱乐'
),
Array (
'cid' => 6,
'cname' => '联系'
)
);
已知$a,参照$a把$b排序成$c的样子。
回复内容:
$a = Array
(
Array (
'cid' => 1,
'cname' => '关于'
),
Array (
'cid' => 7,
'cname' => '简介'
),
Array (
'cid' => 8,
'cname' => '文化'
),
Array (
'cid' => 9,
'cname' => '动态'
)
);
$b = Array
(
Array (
'cid' => 1,
'cname' => '关于'
),
Array (
'cid' => 2,
'cname' => '歌剧'
),
Array (
'cid' => 3,
'cname' => '美剧'
),
Array (
'cid' => 4,
'cname' => '视频'
),
Array (
'cid' => 5,
'cname' => '娱乐'
),
Array (
'cid' => 6,
'cname' => '联系'
),
Array (
'cid' => 7,
'cname' => '简介'
),
Array (
'cid' => 8,
'cname' => '文化'
),
Array (
'cid' => 9,
'cname' => '动态'
)
);
$c = Array
(
Array (
'cid' => 1,
'cname' => '关于'
),
Array (
'cid' => 7,
'cname' => '简介'
),
Array (
'cid' => 8,
'cname' => '文化'
),
Array (
'cid' => 9,
'cname' => '动态'
),
Array (
'cid' => 2,
'cname' => '歌剧'
),
Array (
'cid' => 3,
'cname' => '美剧'
),
Array (
'cid' => 4,
'cname' => '视频'
),
Array (
'cid' => 5,
'cname' => '娱乐'
),
Array (
'cid' => 6,
'cname' => '联系'
)
);
已知$a,参照$a把$b排序成$c的样子。
使用自定义排序函数usort来一发
ref = $ref;
$this->array = $array;
usort($this->array,function($t1,$t2){
$p1 = array_search($t1,$this->ref);
$p2 = array_search($t2,$this->ref);
if(($p1===false||$p1===null) && ($p2===false||$p2===null))
return array_search($t1,$this->array)array) ? -1 :1;
if($p1===$p2) return 0;
if($p1===false||$p1===null) return 1;
if($p2===false||$p2===null) return -1;
return $p1array);
?>
这个应该是多维数组排序问题,php中的 array_multisort可以用于多维数组排序。
具体实现代码就不写了,可以看看手册自己琢磨一下。
/**
* [oneArrayTo 二维数组按某个数组值排序 一对多]
* @param [type] $a [参照数组]
* @param [type] $b [这个是要被排序的数组]
* @param [type] $keyword [键值]
* @return [type] [description]
*/
function oneArrayTo($a,$b,$keyword)
{
$newa = array();
foreach ($a as $key => $value) {
$newa[] = $value[$keyword];
}
$newa = array_flip($newa);
$newb = array();
foreach ($b as $key => $value) {
$newb[] = $value[$keyword];
}
$newb = array_flip($newb);
$d = $newb;
foreach ($newb as $k => $v) {
foreach ($newa as $key => $value) {
if($key == $k) {
unset($d[$k]);
}
}
}
$c = array_flip($newa);
$d = array_flip($d);
$p = array_merge($c,$d);
$p = array_flip($p);
$newbb = array();
foreach ($b as $key => $value) {
$newbb[$value[$keyword]] = $value;
}
$g = array();
foreach ($p as $key => $value) {
$g[] = $newbb[$key];
}
return $g;
}
自己写好了,虽然是笨方法。